<template>
  <el-container class="home-container">
    <!-- 头部 -->
    <el-header>
      <div>
        <img src="../assets/logo.png" alt />
        <span>电商管理系统</span>
      </div>
      <el-button type="info" @click="logout">退出</el-button>
    </el-header>
    <el-container>
      <!-- 侧边栏 -->
      <el-aside :width="isCollapse ? '64px': '200px'">
        <div class="toggle-button" @click="toggleCollapse">|||</div>
        <el-menu  background-color="#333744" text-color="#fff" active-text-color="#409eff" unique-opened :collapse="isCollapse" :collapse-transition='false' :router="true" :default-active="routerActivity">
          <el-submenu :index="'' + item.id" v-for="item in menuList" :key="item.id">
            <template slot="title">
              <i :class="iconsObj[item.id]"></i>
              <span>{{item.authName}}</span>
            </template>
            <el-menu-item :index="'/' + subItem.path" v-for="subItem in item.children" :key="subItem.id" @click="saveNavState('/' + subItem.path)">
              <template slot="title">
                <i class="el-icon-menu"></i>
                <span>{{subItem.authName}}</span>
              </template>
            </el-menu-item>
          </el-submenu>
        </el-menu>
      </el-aside>
      <el-container>
        <!-- 主体 -->
        <el-main>
          <router-view></router-view>
        </el-main>
      </el-container>
    </el-container>
  </el-container>
</template>

<script>
export default {
  data() {
    return {
      menuList: [],
      iconsObj: {
        125: 'el-icon-user-solid',
        103: 'el-icon-s-management',
        101: 'el-icon-s-goods',
        102: 'el-icon-s-claim',
        145: 'el-icon-s-data'
      },
      isCollapse: false,
      routerActivity: ''
    }
  },
  created() {
    this.getMenuList()
    this.routerActivity = window.sessionStorage.getItem('activePath')
  },
  methods: {
    // 退出登录
    logout() {
      window.sessionStorage.clear()
      this.$router.push('/login')
    },
    async getMenuList() {
      const { data: res } = await this.$http.get('menus')
      console.log(res)
      if (res.meta.status !== 200) return this.$message.error(res.meta.meg)
      this.menuList = res.data
    },
    // 切换菜单
    toggleCollapse() {
      this.isCollapse = !this.isCollapse
    },
    saveNavState(path) {
      this.routerActivity = path
      window.sessionStorage.setItem('activePath', path)
    }
  }
}
</script>

<style lang="less" scoped>
.home-container {
  height: 100%;
}

.el-header {
  background-color: red;
  display: flex;
  justify-content: space-between;
  padding-left: 0;
  align-items: center;
  color: white;
  img {
    width: 50px;
    height: 50px;
  }
  > div {
    display: flex;
    align-items: center;
    span {
      margin-left: 15px;
    }
  }

}
.el-aside {
  background-color: #333744;
  .el-menu{
    border-right: none;
  }
}

.toggle-button{
  background-color: #4a5064;
  font-size: 10px;
  line-height: 24px;
  color: #fff;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer;
}

.el-main {
  background-color: grayscale;
}
</style>
